Besai heads a family of Nethinim—temple servants who assisted the Levites in maintaining the temple and its services. His descendants numbered among those who returned from Babylonian exile to restore worship in Jerusalem. The Nethinim likely included both Israelites and foreigners dedicated to temple service, their role being essential though their social status was lower than priests and Levites. The slight variation in spelling between Ezra and Nehemiah (Besai/Besay) reflects normal scribal variation without changing the family identity.